Finding the Fourth Proportional to 2,228.16, 3,074.91 and 1,443.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,228.16 : 3,074.91 = 1,443.57 : x
2. Step 2: Convert to fraction form
   2,228.16/3,074.91 = 1,443.57/x
3. Step 3: Cross multiply
   2,228.16x = 3,074.91 × 1,443.57
4. Step 4: Simplify right side
   2,228.16x = 4,438,847.83
5. Step 5: Solve for x
   x = 4,438,847.83/2,228.16
6. Step 6: Final answer
   x = 1,992.16